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G. BARR. RQTARYENGI'NB.

(No Model.)

No. 367,177. Patent-ed July 26, I887.

INVENTOR 25d WITNESSES V ATTORNEYS.

N. PETERS. Pholo-Lilhngnphar. wasmnpm ac U ITED STATES PATENT OFFICE.

GEORGE BARR, OF LA CENTER, WASHINGTON TERRITORY.

ROTARY ENGINE.

. SPECIFICATION forming part of Letters Patent No. 367,177, dated July26, 1887. Application filed October as, 1886. Serial No. 211,032. (Nomodel.)

To all whom it vnay concern:

Be it known that I, GEORGE BARR, of La Center, in the county of Clarkeand the Terri tory of Washington, have invented a new and ImprovedRotary Engine, of which the following is a full, clear, and exactdescription.

This invention relates to the construction of a novel form of rotaryengine which may be driven either bysteam or water pressure, the actionof the engine depending upon the wellknown law that the pressure of aliquid or of steam confined in a vessel is equal upon all sides of thevessel. Y

The ihvention consists, essentially, of a hollow revoluble shaftcarrying a hollow cross arm or tube the ends of which are closed, andwhich is provided with side ports, said ports passing through oppositesides of the arm near either end thereof; and the invention furtherconsists of certain novel constructions and combinations, to behereinafter described, and

specifically pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar figures of reference indicatecorresponding parts in all the views.

Figure 1 is a side view of my improved form of engine. Fig. 2 is alongitudinal sectional v ew of the cross arm and its connections, andFig. 3 is a view of a construction wherein the parts are so arrangedthat the engine may be run 11] either direction.

In constructing such an engine as the one forming the subj cot-matter ofthis application, 1 provide a main supporting frame, 10, in which thereis mounted a hollow shaft or tube, 11, which carries a driving-pulley,12. The shaft or tube 11 is connected by suilablecouphugs, 13, with thebranch arms 14 of a supplypipe, 15. To this shaft 11 there is rigidlyconnected a cross arm 'or tube, 16, the bore of which communicates withthe bore of the cen tral shaft or tube. This cross-arm 16 is formed withclosed ends and with ports 2, said ports being upon opposite sides ofthe arm and near either end thereof.

In connection with each port there is arranged a slide-valve, 17, theedges of which are beveled in order to fit in beveled grooves 18, thatare formed upon the sides of the arm. In connection with each slidethere is arranged a toggle lever, 19, one'end of the toggle-lever beingpivotally connected to the end of arm 16 opposite to that in connectionwith which its slide is arranged, while the other end of the lever ispivotally connected to the slide.

The central joints of the levers 19 are con- .nected with a sleeve, 20,which is mounted upon the shaft 11, this connection being establishedthrough the medium of a link, 21.

Just above the arm 16 the shaft or tube 11 carries twooutwardly-extending rods or bars, 22, upon which there are mounted balls23, said balls being connected with the sleeve 20 by means of links 24,while between the balls and the shaft there are arranged springs 25,

the arrangement being such that as the speed of the shaft increases theballs will be thrown outward from the shaft. The sleeve 20 will bethereby lowered and the slide-valves 17 thrown outward to close theirports.

In operation steam or water under pressure is admitted through the pipe15, and thence through the arms 14, leading from said pipe, will enterthe bore of the shaft 11, passing thence into the bore of the arm 16. Inentering the arm 16 the pressure of the water or steam would be equalupon all sides of the arm were it not for the ports 2; but owing tothese ports the pressure at that point will be nil, and consequently thepressure upon the side opposite to the ports will over-balance thepressure upon the side where the ports are located, and thus the armwill be moved in the direction of the arrows shown in connectiontherewith in Fig. 2, and, so moving, will impart a rotary motion to theshaft 11, which motion may be transmitted through proper belting appliedto the pulley 12. As the speed of the shaft increases the governor, madeup of the sleeve, balls, and connections, hereinbefore described, willact to partially close the ports, thus tending to equalize the pressureupon the two sides of the arms, and hence the speed will be diminished.

In Fig. 3 I illustrate a construction whereby the shaft 11 may be madeto revolve in either direction, this object being accomplished byforming the arm 16 with two ports at each end. The ports-2 are closed byvalves 17, arranged as hereiubefore described; but the ports 8 upon thesame sides of the arm are closed by valves 27, each of which is formedwith a central opening, 9. The valves 17 and 27 are con- IOC nected witha central link, 28, by links 30, the link 28 being connected with acollar or sleeve, 31, which is formed with an annular groove, 32, inwhich there is arranged a yoke, 33, said yoke being engaged-upon eitherside by arms 34 of a lever, 35, said arms 31 being slotted to engagewith pins 36, that extend outward from the yoke. The lever 35 ispivotallyeonnected to the frame 10 and arranged so that it may be lockedin anyposition required, this adjustment of thelever being brought aboutby means of a toothed rack, 37 that is engaged by a bolt, 38, that isoperated by an end piece, 39, as clearly shown. From this arrangement itwill be seen that if the lever 35 should be thrown so as to force thelever 31 downward the port 2 would be closed and the port 8 would beopened, for as the sleeve moves downward the valves will be movedoutward toward the ends of the arm 16, and as the valve 27 moves outwardits open: ing 9 will be brought in register with the port 8 of the arm16, the valve 17 coming in contact with the end of its seat and actingas a stop for arm 30, and it will, also be seen that the speed may beregulated as desired.

Having thus fully described my invention, I claim as new and desire tosecure by Letters Patent- 1. In a rotary engine, the combination, with ahollow shaft having a hollow cross arm provided with ports, of thevalves applied to said ports, and the toggle-links connected to saidvalves, one link permitting of the closing of one valve and another orfellow link having its one or distant end adapted to remain stationaryduring the closing of said valve, substan tially as and for the purposeset forth.

2. In a rotary engine, the combination, with a hollow shalt having ahollow cross-arm provided with arms having ports, of valves applied tosaid ports, and the links connected to said valves, one link permittingof the closing of one valve and another link adapted to open anothervalve after the closing of the aforesaid valve, substantially as and forthe purpose set forth.

3. In a rotary engine, the combination, with a supporting-frame, of ahollow shaft, 11 mounted in bearings 13, a supply-pipe, 15, havingbranch arms 14, that are also con nected to the bearings 13, a hollowcross-arm, 16, formed with ports 2, valves 17, toggle-levers 19, asleeve, 20, connecting-links 21, rods or bars .22, balls 23, and links24, all substantially as described.

4. In a rotary engine, the combination, with a central shaft, of ahollow arm connected thereto and in communication with the bore of theshaft, :1 water or steam supply attachment, valves, as 17 and 27,arranged, respectively, in connection with ports 2 and 8 of the crossarm, asleeve, 31, connection between the sleeve and the valve, and anoperating-lever arranged in connection with the sleeve, substantially asdescribed.

GEORGE BARR.

\Vitnesses:

HENRY HERROLD, HENRY HOBERT.

